diff options
| author | Saket Saurabh <ssaurabh@codeaurora.org> | 2014-06-11 12:20:51 +0530 |
|---|---|---|
| committer | Saket Saurabh <ssaurabh@codeaurora.org> | 2014-06-12 12:03:07 +0530 |
| commit | 4aebedc75270893dc0538639e3cec3b33095de74 (patch) | |
| tree | 41f1e541b1cd4414a965a6806f1e8ae004cf7772 /net/unix/af_unix.c | |
| parent | da6b67eaba9703391f040f2eee79a714253bb04a (diff) | |
usb: u_serial: Fix NULL pointer dereference in u_serial tty callbacks
The tty driver data is initialized in gs_open() during port open and
is set to NULL in gs_close() as part of port close. It is possible
that TTY may invoke the registered u_serial tty callback methods after
port is closed. This race between gs_close() and tty callback methods,
leads to NULL pointer dereference.
Fix the issue by adding check for tty driver data in all the u_serial
tty callback methods.
CRs-Fixed: 678702
Change-Id: I9e45f1927f9610fc8567edb8e609a10f19c00017
Signed-off-by: Saket Saurabh <ssaurabh@codeaurora.org>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions